Callywood's Laughing Out Loud

Laughter is a part of ?human behavior? regulated by the ?brain?, helping humans clarify their intentions in ?social interaction? and providing an emotional context to conversations. Laughter is used as a signal for being part of a group — it signals acceptance and positive interactions with others. Laughter is sometimes seen as contagious, and the laughter of one person can itself provoke laughter from others as a ?positive feedback?. This may account in part for the popularity of ?laugh tracks? in ?situation comedy? television shows.

? Laughter,Human Behavioir,Laugh